Good to know, the explanation is very good. I wouldn't know how to explain exactly why it is needed to check "conserve instant utilities", now it is clearer to me.
I wish WMDB had the maintenence TUS have, where things evolve and if someone gives a feedback or a bug report things really change or at least those people are listened and more considered.
I wish WMDB had some new categories, because there are a lot of maps designed for a specific scheme, but they don't receive categories. Maybe TUS maps could receive these new categories since WMDB doesn't seem to update the website so much. The last category added was not long ago, though (Rowy was added, but it has still only 2 maps while there are schemes with more than 20 maps waiting to be added there). I know that TUS doesn't have some maps that WMDB has, but if these categories are implemented we can try to upload these maps to TUS.